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Finding the Fourth Proportional to 436.84, 603 and 262.18

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Solution

The fourth proportional to 436.84, 603 and 262.18 is: 361.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.84 : 603 = 262.18 : x
  2. Step 2: Convert to fraction form
    436.84/603 = 262.18/x
  3. Step 3: Cross multiply
    436.84x = 603 × 262.18
  4. Step 4: Simplify right side
    436.84x = 158,094.54
  5. Step 5: Solve for x
    x = 158,094.54/436.84
  6. Step 6: Final answer
    x = 361.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.